Alabama utilities with moderately hard water.

61 to 120 mg/L (3.6 to 7 grains per gallon). 64 utilities serving 2.4 million people as they report it, largest first.

All 64, by people served

Alabama utilities with moderately hard water, 1 to 64
Utility	Based in	Serves	Hardness, mg/L	Grains per gallon
Central Alabama Water	Birmingham	653,322	110	6.4
Huntsville Utilities Water Dept.	Huntsville	310,107	84	4.9
City of Montgomery, the Ww&Ssb of the	Montgomery	276,000	88	5.1
City of Dothan Utilities	Dothan	97,146	118	6.9
City of Florence Water Department	Florence	77,766	81	4.7
Decatur, Municipal Ub of	Decatur	77,103	69	4
Anniston Alabama, the Wwsb of the City O	Anniston	56,865	99	5.8
City of Madison, the W & Ww Board of the	Madison	54,114	74	4.3
Harvest - Monrovia W,S, and Fp, Inc.	Harvest	51,915	117	6.8
City of Enterprise, the Wwb of the	Enterprise	48,000	119	7
US Army Garrison - Redstone Arsenal	Redstone Arsenal	44,472	72	4.2
Athens Utilities	Athens	43,431	115	6.7
Shelby County Commission - Water Services	Columbiana	40,101	82	4.8
City of Arab, Water Works Board of the	Arab	39,795	75	4.4
Warrior River Water Authority	Bessemer	38,700	120	7
Section & Dutton, Water Works Bd. of	Rainsville	35,259	71	4.2
Calhoun County Water Authority	Alexandria	32,796	119	7
Dekalb - Jackson Water Supply District	Ider	32,421	67	3.9
West Morgan - East Lawrence W&S Authority	Decatur	30,000	73	4.3
Muscle Shoals Utility Board	Muscle Shoals	22,467	72	4.2
Scottsboro Water Sewer & Gb	Scottsboro	22,200	92	5.4
City of Selma, the Ww and Sb of the	Selma	21,834	105	6.1
Fort Rucker - American Water Enterprises	Ft. Rucker	16,774	91	5.3
North Marshall Utilities	Grant	15,300	74	4.3
Jacksonville Water Works Gas and Sewer	Jacksonville	14,217	114	6.6
Saraland, Bd of W&S Commissioners	Saraland	13,827	71	4.2
Sheffield Utilities, City of Sheffield	Sheffield	13,758	72	4.2
Colbert County Rural Water System	Tuscumbia	13,449	81	4.7
Guntersville Ww & Sb	Guntersville	13,374	74	4.3
Covington County Water Authority	Andalusia	13,224	69	4
Beauregard Water Authority	Opelika	12,684	87	5.1
Jackson Water Works & Sewer Board	Jackson	11,715	100	5.8
Henry County Water Authority	Abbeville	11,625	66	3.9
City of Brewton, the Wwb of the	Brewton	11,430	103	6
City of Daleville, the Wwsb of the	Daleville	10,014	64	3.8
City of Taylor	Taylor	9,339	100	5.8
Quint - Mar Water Authority	Highland Home	8,706	82	4.8
McCall Water System Inc	Brewton	8,400	72	4.2
Town of Centre, Ww and Sb of the	Centre	8,163	67	3.9
Abbeville, Water Works & Sewer Board	Abbeville	8,133	92	5.4
Piedmont Utilities Board	Piedmont	8,073	115	6.7
Dale County Water Authority	Ozark	7,779	69	4
New London Water & Fp Authority	Cropwell	6,843	113	6.6
Town of Snead Water Works	Snead	6,111	91	5.3
Rogersville Water Works & Sewer Board	Rogersville	5,817	87	5.1
Fords Valley & Hwy 278 Water	Piedmont	5,760	119	7
Hokes Bluff Water Board	Hokes Bluff	5,536	111	6.5
Bridgeport Utilities Board	Bridgeport	5,505	79	4.6
Old Line Water System	Jackson	5,145	109	6.3
Coker Water Authority	Coker	5,118	76	4.4
Stewartville Water Authority	Sylacauga	5,067	81	4.8
Houston County Water Authority	Dothan	4,902	84	4.9
Dallas County Water & Sewer Authority	Selma	4,152	72	4.2
City of Hartford	Hartford	4,140	120	7
Samson Water Works	Samson	4,128	100	5.8
Myrtlewood Water System	Myrtlewood	4,095	93	5.4
Ardmore Water System	Ardmore	3,903	85	5
City of Riverside	Riverside	3,864	115	6.7
Town of Level Plains	Daleville	3,819	97	5.7
City of Ashford Water Works	Ashford	3,816	104	6.1
West Dallas Water Authority	Sardis	3,747	70	4.1
Cleveland Water Works	Cleveland	3,516	89	5.2
Midland City Water Department	Midland City	3,300	66	3.8
Riverview Water Works	East Brewton	903	84	4.9

Source: Alabama Department of Environmental Management, Drinking Water Branch, 238 utilities, results from Jan. 12, 2015 to Sept. 21, 2026, read Oct. 17, 2026. Each sampling point is taken at its median; a figure is typical where every point falls in one band.

Bands are the U.S. Geological Survey’s, at 17.1 mg/L to the grain. People served is what each utility reports; where one sells water to another, the same people can be counted twice. How hardness is measured here.

All 64, by people served

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